The 1875 Proof Twenty Cent Piece is the first year of issue for this extremely short series that is very highly desired by collectors; and therefore, the first struck in proof format. It is one of the two proof type coins (the other being from 1876) from the 4 total issues that is relatively common with a mintage of 2,790. This mintage is quite high for proof issues of this denomination. This date is decently scarce from the AU range all the way through MS66. The value escalates at a gradual pace up until the finest known grade of PR67, which is rare. As cameo and deep cameo pieces go there is an expected, yet subtle, premium. The survival estimate for the date is 600 although just 124 have a Cameo designation from PCGS and NGC and only 6 exist in Deep Cameo. Deep Cameos are very rare across all Twenty Cent dates.
| coinage-type | Seated Liberty twenty cent piece |
| desg | PR |
| designer | William Barber |
| diameter | 22 |
| edge | Plain |
| fineness | 0.9 |
| material | 90% silver; 10% copper |
| mintage | 1,200 |
| ngc-id | 27GZ |
| obverse-description | Lady Liberty is seated on a rock, holding a staff, and bearing a shield with the word LIBERTY on a flowing ribbon. 13 stars have adorn the periphery and the date appears at the bottom center. |
| pcgs-link | 5303 |
| pcgs-number | 5303 |
| reverse-description | An eagle is prominently featured with the words UNITED STATES OF AMERICA * TWENTY CENTS around the periphery. |
| weight-grams | 5 |
| year-display | 1875-1878 |